Show JACK FROSTS CLEVER TRICKS chief among them Is ability to make water that Is frozen an exception to the rule jack frost Is a very clever fellow for not only Is he an artist for everyone has seen the beautiful designs he draws on the window but he also doea some wonderful conjuring tricks As you know he bursts pipes and this Is how he does it the montreal herald states first of all you should remember that jack frost la merely another name for the extreme winter cold which Is below freezing point nearly every substance in nature expands or stretches when heated and contracts or occupies a smaller space when the temperature falls but water Is an exception to this rule for it expands when heated it does not contract when frozen on the contrary it expands once more you can prove this yourselves on a frosty day by this simple experiment fill a bottle with water right up to the cork and leave it out to freeze overnight over night in the morning boj will find that the cork is right out of the neck of the bottle on a piece of ice tow this shows that water expands when frozen and that Is exactly what happens when the water freezes in a pipe it expends and bursts the pipe and it Is not until the water thaws and gushes out that we know about it |